Home / 21,542,461.80-32,297,622.30-13,021,002.60

Finding the Fourth Proportional to 21,542,461.80, 32,297,622.30 and 13,021,002.60

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Solution

The fourth proportional to 21,542,461.80, 32,297,622.30 and 13,021,002.60 is: 19,521,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542,461.80 : 32,297,622.30 = 13,021,002.60 : x
  2. Step 2: Convert to fraction form
    21,542,461.80/32,297,622.30 = 13,021,002.60/x
  3. Step 3: Cross multiply
    21,542,461.80x = 32,297,622.30 × 13,021,002.60
  4. Step 4: Simplify right side
    21,542,461.80x = 420,547,423,942,118
  5. Step 5: Solve for x
    x = 420,547,423,942,118/21,542,461.80
  6. Step 6: Final answer
    x = 19,521,790.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.